Search-light projectile.



F. ZIEGE'NFUSS.

smnon LIGHT PROJEOTILE.

APPLIGATIOH HLBD MAY 22, N11.

Patented Sept. 12,1911.

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FRIEDRICH ZIEGENFUSS, OF ESSEN-ON-THE-RUHR, GERMANY, ASSIGNOR TO FRIED. KBUPP AKTIENGESEL LSCHAFT, OF ESSEN-ON-THE-RUHR, GERMANY.

SEARCH-LIGHT 'PROJECTILE.

. Specification of Letters Patent. Patented Sept. 12, 1911.

Application filed May 22, 1911. Serial No. 628,815.

To all whom it may concern" Be it known that I, FRIEDRICH ,ZIEGEN- FUSS, a subject of the Emperor of Germany, and a resident of Essen, Ruhr, Germany, haveinvented certain new and useful Im-' provements in Search-Light Projectiles, of which the following is a specification.

This invention relates to Searchlight projectiles, provided with-a parachute, and the object of the invention is to construct projectiles of this kind in which the candle or illuminating body is very compact but at the same time made to hold as large a quantity of illuminating matter as possible.

One embodiment of the invention is represented in the drawing, whercin:

Figure 1 is an axial section of the projectile; Fig. 2 is a single candle or. illuminating body with closed parachute; Fig. 3, a section on lines 33 of Fig. 2 seen from above; Fig. 4, a section on line H of Fig. 2 and seen from the left, with" open parachute, and parts of the details left out. Fig. 5, a top View of Fig. 4, partlj in sec tion.

The search light projectile represented in Fig. 1 is practically constructed as a base chamber shrapnel. A represents the shell, B the bursting charge, C the ejecting disk, and D the ignition tube, connecting the time-fuse E with the bursting charge B. The candles or illuminating bodies F are arranged around 'the ignition tube 1) in several layers separated by diaphragms G in-the shell chamber.

The candlesF are constructed in the following manner: The lighting material H fills. completely the housing F and is provided with a match h (Fig. 4:) consisting of a small quantity of powder. As shown in Fig. 3 this housing F 1 is a hollow prism, open at one end, and of hexagonal crosssection. The open end of the housing, be ing closed by a'diaphragm f, has attached to it, by means" of the hinges K, six wings J, having a cross-section that is made to conform to the shape of the candle housing. F The wings J are subject to the tension of the helical springs M (Fig. 4), atone end attached to the diaphragm f of the housing F and at the other end secured to the tongues i of the wings J. The said springs M have a tendency to spread the wings J out into' their operative position, moving them in the direction of the arrow a: (see Fig. 4). )Vith the Wings spread out as shown, the coils of the springs .M are close together, forming a stop for the Wings, so that no further movement is possible. As a consequence the Wings Will remain in their spread out position, even with the air-resistance acting upon them during the falling of the candles. Said candles are stored in the chamber of the projectile in such a position that the end to which the wings J are hinged. are turned toward the base of the projectile (Fig. 1). The wings will then be folded (see Figs. 2 and 3) in such a manner, that three alternate wings are laid close to the Wallsof the housing F while the other Wings are folded on top of the first ones, each covering about half of its right and left neighbor, thus .comoletely covering the side walls of the housing F The wings are then held in this folded position by the side-walls of the chamber pro- -vided for each candle.

the time-fuse is set so that In operation, the bursting charge will not be ignited until the projectile is on the descending part of the trajectory. After the ignition of the charge B the candles will be thrown out by means of the ejecting disk C. By the flame from the ignited charge B, first the match If and subsequentlythe lighting material H of each separate candle will be ignited. When the candles have been liberated, the Wings J will be spread out as indicated in Fig.4, actuated by the springs M. The ejection of the candles F taking place on the descending part of the trajectory, and as a consequence, the rear end, which is the hinged end of the candle, being situated higher than the forward end, the unfolding of the parachute is considerably facilitated. This will be evident from the circumstance, that the end of the candle carrying the wings is turned toward the base of the projectile during its flight. After the ejection from the shell, the candles fall slowl'yto the ground, while the lighting material is burning, having the position indicated in Fig. 4.

Having thus described my What I claim as new therein and secure by Letters Patent, is':-

1. Asearch light projectile, comprising a plurality of illuminating bodies and means invention", desire to "for sustaining v liberation, said ity of wings.

said bodies in'the air after means comprising a plural- A Searchlight ,projectile,.comprising a pluralityof illuminatin bodies and means for sustaining said bodies in the air after Y plurality of illuminating-bodies and means liberation, ity of wings constructed to fold around the illuminating bodies while said bodies are deposited in the projectile chamber.

3. A search light projectile,.comprisinga for sustaining said bodies in the air after ]iberation,jsaid means comprising a plural- .ity of wings constructed to fold around the illuminating bodies while said bodies are i deposited plurality of illuminatin for; sustaining said bodies in theair after in the projectile 4. A search light projectile, comprising a bodies and means liberation", said means comprising a pluralthe illuminating body is ity,of wings hinged minating body and constructed to fold when.

housed, and to untold when the illuminating body islibe ated.

said means comprising a pluralchamber, and to unfold when liberated. from the projectile chamber; v

at one end of the 11111-- 5. A search light projectile comprising a a plurality of illuminatin bodies, the crosssection of said illuminating bodies, forming a polygon, in combination with a plurality of wings, corresponding'in number with the number of sides inisaid polygon, and the 'cross-section of said wings adapted to conform with the cross-section of said polyon. a v a 6. search light projectile comprising a shell body, a time-fuse and a busting charge in combination with ,a plurality of illuminat-ingbodies shaped to conform with the shape of the cells of said shell body, a plurality of wings Barmen, Germany,;this 10th day of May,

FRIEDRICH ZIEGENFUSS. TL. S-l In presence of CHAS. J. WRIGHT,

ALFRED HENKEL. 

